1. Enhanced HA and DR with MetroCluster & Vmware
Philippe Wackers

2. Why MetroCluster?
Datacenter 1
Single Controller
Loop A
Loop B

3. HA Cluster Active Active
Why MetroCluster?
Datacenter 1
HA Cluster
Active
Active
Heartbeat
So what I'm going to do in this talk, is I'm going to talk about what's going on in the industry overall. The trends affecting Network Appliance; the trends affecting our competitors and talk about what's the business landscape and try and use that as tool to help people understand what this new portfolio of businesses means for us.
To start with one of the really interesting things is why do we have an opportunity to do what we're trying to do. To create a whole portfolio of businesses and businesses that move further up the data management stack not just about storage. Decru doesn't have any disc drives in it that’s kind of different for the way we typically think.
Well if you look up here these are the issues that people have historically dealt with when they thought about storage. Operations stuff, 24x7, controlling costs of course but data is turning into something different.

4. Configurations Stretch MetroCluster Fabric MetroCluster Metrocluster
MetroCluster is a NetApp unique, cost-effective synchronous replication solution for combined HA and DR, protecting against site disasters within a campus or metropolitan area
Configurations
Stretch MetroCluster
Campus DR protection - Distances up to 500m
Fabric MetroCluster
Metropolitan DR protection - Distances to 100 km

5. MetroCluster Features & Benefits
Highest Level of Availability
Provides superior availability to RAID 1 + 0
Protects against data center failures and site disasters for a negligible cost premium
Simple & Fast Recovery
Automatic Recovery for any single component failure
Single command recovery even for major catastrophic site failures
Cost-effective
Combines High Availability clustering with Disaster Recovery mirroring
Zero Data Loss
Synchronous data replication
Enhanced Read Performance
Up to 80% improved read performance for random reads, due to simultaneous read operations occurring on both plexes

6. MetroCluster Components
Cluster license Provides automatic failover capability between sites in case of most hardware failures
SyncMirror Provides an up-to-date copy of data at the remote site; data is ready for access after failover without administrator intervention
ClusterRemote Provides a mechanism for administrator to declare site disaster and initiate a site failover via a single command for ease of use
FC Interconnect Provides filer connectivity between sites that are greater than 500 meters apart; enables sites to be located at a safe distance away from each other

7. MetroCluster Overview: SyncMirror
Writing to an unmirrored volume
Writing to a mirrored volume
Two Plexes Created
Plex 0 from Pool 0 = Local
Plex 1 from Pool 1 = Remote
Volume1
Volume1
Pool 0
Plex 0 A
Pool 0
Plex 0 A
Pool 1
Plex 1 A’

8. Controller A Controller B Local Plex A Local Plex B Remote Plex B
Stretch MetroCluster
2Gb
4Gb
Datacenter 1
Datacenter 2
Active
Active
Heartbeat
Controller A
Controller B
Local Plex A
Local Plex B
Remote Plex B
Remote Plex A

9. MetroCluster – Disk Failure
Datacenter 1
Datacenter 2
Heartbeat
Controller A
Controller B
Local Plex A
Local Plex B
Remote Plex B
Remote Plex A

10. MetroCluster – Controller Failure
Datacenter 1
Datacenter 2
Heartbeat
Controller A
Controller B
Local Plex A
Local Plex B
Remote Plex B
Remote Plex A

11. MetroCluster – Storage Failure DC1
Datacenter 1
Datacenter 2
Heartbeat
Controller A
Controller B
Local Plex A
Local Plex B
Remote Plex B
Remote Plex A

12. MetroCluster – Interconnect Failure
Datacenter 1
Datacenter 2
Each controller will continue to run, serving it’s LUNs / volumes
Heartbeat
Controller A
Controller B
Local Plex A
Local Plex B
Remote Plex B
Remote Plex A

13. MetroCluster – Hosts Failure DC1
Datacenter 1
Datacenter 2
Vmware HA
Heartbeat
Controller A
Controller B
Local Plex A
Local Plex B
Remote Plex B
Remote Plex A

14. MetroCluster – Site Failure DC1
Datacenter 1
Datacenter 2
Vmware HA
Heartbeat
Controller A
Controller B
Local Plex A
Local Plex B
Remote Plex B
Remote Plex A

15. Controller A Controller B Primary Plex A Primary Plex B
Fabric MetroCluster
Datacenter 1
2Gb
4Gb
Datacenter 2
Active
Active
Heartbeat
Controller A
Controller B
Primary Plex A
Primary Plex B
Secondary Plex B
Secondary Plex A

16. Highest Level of Availability with MetroCluster
Storage Rack Failure (Controller, Disk Shelves)
Data Center/Site Disaster
Availability
SyncMirror
Shelf Failure (Backplane, Ops Panel)
Triple Disk Failure
Dual Shelf Failures (Controllers, PSU/Fans, Cables)
FC Loop Failure (misbehaving disk)
CFO + RAID-DP
Storage Processor Failure
Single Path Failure
Single Shelf Module Failure
Single HBA/Port Failure
Double Disk Failure
Single Disk Failure + MEDR

17. MetroCluster is a Netapp unique,
Summary
MetroCluster is a Netapp unique,
cost-effective synchronous replication solution
For combined high availability and disaster recovery within a campus or metro area, that minimizes downtime with no data loss
For multiple sites within a campus or metro environment, that need a highly resilient storage-cluster solution for business-critical applications

18. Simplifying Data Management
So what's my point out of all of this? I think it's really exciting to be just beginning another one of these transitions. I don't think we're finished with SAN or understanding enterprise capabilities. That's a long, long trend, but these new things that we're putting in place: I believe they will be the characteristics of NetApp that five years from now we look back and maybe Rob will stand up and say, :you know what? How many people were here before it was a portfolio of businesses as opposed to after it was a portfolio of businesses?” And we'll look back and see that same amount of change driven by what it took to make that successful. That's my vision and aspiration for the future.
Thank you very much.